#7814246 - 08/11/14 02:10 PM
Re: how bad is 'bonking' in your workout?
[Re: stickaz_old]
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dirtyS13drifta
dirtyS13drifta
Unregistered
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I thought a bonk was a low carb/blood sugar thing.
cramps are different.
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#7814265 - 08/11/14 02:17 PM
Re: how bad is 'bonking' in your workout?
[Re: ]
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stickaz_old
Post Master Supreme
Registered: 02/04/01
Posts: 56459
Loc: Nor Cal, Hella hurr durr
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no cramp, just too burnt to continue running
my understanding of a bonk [for example] in biking is that you pushed it too hard/too quick/arent hydrated enough/arent taking in enough nutrition/need to hop off the bike and cry in the bushes for a solid 15 minutes. thats a bonk
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#7814292 - 08/11/14 02:28 PM
Re: how bad is 'bonking' in your workout?
[Re: Impulsive]
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dirtyS13drifta
dirtyS13drifta
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#7814757 - 08/11/14 06:42 PM
Re: how bad is 'bonking' in your workout?
[Re: stickaz_old]
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gamby
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Registered: 11/01/99
Posts: 40865
Loc: RI
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Did it once 40 miles or so into a ride. Didn't eat enough before/during and didn't have any food left on me or any nearby place to buy more. It sucked.
I get lightheaded and headachey and that makes me lose all will to continue on. I tend to be pretty well-prepared doe.
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#7814842 - 08/11/14 07:36 PM
Re: how bad is 'bonking' in your workout?
[Re: Silock]
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Sir Ironpool
Sponsored by Toyota
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Registered: 03/12/01
Posts: 71801
Loc: Long Beach, CA
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There's a reason people hit "the wall" at mile 20 of a marathon. That's usually about 3 hours in and the glycogen stores dry up. Good reading here:
http://www.marathonandbeyond.com/choices/latta.htm
" “Hitting The Wall is basically about running out of energy,” says Dave Martin, Ph.D., Emeritus Regent’s Professor of Health Sciences at Georgia State University in Atlanta—chemical energy, that is, stored in the form of adenosine triphosphate (ATP) and obtained from the breakdown, or metabolism, of energy-containing fuel. The runner’s primary fuel sources are carbohydrates (in the form of blood glucose and glycogen, a polymer of glucose stored in the muscles and liver) and fats (free fatty acids in the bloodstream and muscle triglycerides, molecules containing three fatty acids).
Fats might seem to be the logical first choice of fuel for endurance events; not only are they the most concentrated form of food energy, but even the thinnest runners have enough body fat to get them through 600 miles. Alas, it’s not quite that simple. Fatty acid metabolism requires plentiful circulating oxygen, a precious commodity when you’re running at marathon race pace. Carbohydrate metabolism, on the other hand, requires less oxygen. In fact, cells can derive energy from carbohydrates either aerobically (in the presence of oxygen) or anaerobically (in the absence of oxygen).
If you start your marathon at a reasonable pace for you, your fuel consumption ratio will be about 75 percent carbohydrates to 25 percent fatty acids, according to Martin. During the race, as carbohydrate supplies begin to dwindle, that ratio changes as your body begins to rely more heavily on fatty acids.
What does all of this have to do with hitting The Wall? Let’s start with the pace. It’s common, in the excitement of the moment, to start out at a pace that’s too fast for you. Big mistake. Your heart cannot pump enough blood to ensure a steady supply of oxygen to the muscles. At this point, your muscles have no choice but to burn glucose in the absence of oxygen. The anaerobic metabolism of glucose, as it’s called, is inefficient, yielding only about 1/18 as much energy (in the form of ATP) as aerobic metabolism. To make matters worse, among the by-products of the anaerobic metabolism of glucose are lactic acid and hydrogen ions. As these waste products continue to accumulate in the blood and tissue, they will not only make your muscles feel as though they are on fire, but they can also inactivate the enzymes that govern glucose metabolism. You’re toast.
Even if you’re racing at a reasonable pace and you’ve done a good job of carboloading in the days before the marathon, you still have only about 2,000 calories worth of glycogen stored in the muscles and liver; that’s about enough to get you to—surprise!—mile 20. If you manage to deplete your glycogen reserves, say hello to The Wall. As mentioned before, burning fatty acids requires plentiful oxygen, so as fatty acid metabolism increases, your heart must work harder to pump more oxygen-carrying blood to the muscles. It may be difficult or impossible to maintain your pace, especially if you’ve lost enough water through sweat to become even slightly dehydrated (this causes your blood to become thicker and therefore harder to pump). In addition, fatty acid metabolism itself requires glucose; as someone once said, “Fat is burned in a carbohydrate oven.”
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#7814885 - 08/11/14 08:04 PM
Re: how bad is 'bonking' in your workout?
[Re: Silock]
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gamby
Post Master Supreme
Registered: 11/01/99
Posts: 40865
Loc: RI
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Now, if you're only running off of your glycogen stores and they run out, and you aren't used to it, it's going to affect you much more.
That sounds like me.
I do a Clif Bar every hour and I'm good.
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___________________________________ gamby still have an EM1--go figure
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#7815137 - 08/11/14 11:54 PM
Re: how bad is 'bonking' in your workout?
[Re: It's Art]
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gamby
Post Master Supreme
Registered: 11/01/99
Posts: 40865
Loc: RI
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Why can't people talk like normal people?
WTF is bonking?
Running/cycling jargon for "running out of gas". It's the point of depletion. Some people lock up, some throw up, some pass out, some just have to sit down. Depends on the degree of depletion and the specific person.
I once saw a chick on an MS150 sitting on a curb of a rest stop crying because she hit the wall so hard. I heard her tell the EMT she hadn't eaten anything all day (and that was around 50 miles in, IIRC). She wasn't well-versed in the art of fueling.
Too much and you want to shit yourself, too little and you bonk.
Whoops--treed
Edited by g@mby (08/11/14 11:55 PM)
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#7815692 - 08/12/14 10:52 AM
Re: how bad is 'bonking' in your workout?
[Re: It's Art]
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stickaz_old
Post Master Supreme
Registered: 02/04/01
Posts: 56459
Loc: Nor Cal, Hella hurr durr
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How's that working out for you by demonstrating your ignorance/lack of wit again?
_________________________
Swim->Bike->Cry "I can see that nurses head bobbing around going "I AINT CANCELIN MUH PLANS, FUCK A CDC. WHO DEY ANYWAY NAH MEEN? IMA GO SEE MUH BOO" -johnso
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#7815814 - 08/12/14 11:35 AM
Re: how bad is 'bonking' in your workout?
[Re: Ampsman in Extremis]
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Design
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Registered: 12/11/02
Posts: 11409
Loc: The OC
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On the last marathon I hit the wall hard at mile 16. Combination of heat and a very aggressive pace. I think it's OK to flirt with the limits as long as we know what to do when we experience it.
For me... I took in extra water/fuel and eased through the rest of the race at a comfortable pace. It was a good lesson in what I could do with better training/technique.
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09 CWP MS3 01 Echo 5MT 00 EBP Si - Sold - Pics89 Camaro - Sold CSI. What's your diversion?
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#7815915 - 08/12/14 12:06 PM
Re: how bad is 'bonking' in your workout?
[Re: Sir Ironpool]
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Design
Post Master Supreme
Registered: 12/11/02
Posts: 11409
Loc: The OC
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_________________________
09 CWP MS3 01 Echo 5MT 00 EBP Si - Sold - Pics89 Camaro - Sold CSI. What's your diversion?
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#7815963 - 08/12/14 12:23 PM
Re: how bad is 'bonking' in your workout?
[Re: Design]
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dirtyS13drifta
dirtyS13drifta
Unregistered
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I feel like dehydration isn't anything to fuck with, same with sodium issues.
Low glycogen/blood sugar, i.e Bonking, that's superficial suffering. Like it doesn't "hurt" you, but may make you miserable.
Either way, it's done, so learn a lesson, bring some food/water, or go slower(less carbs, more fat burned, and generally less perspiration/respiration losses).
and lol, "wtf is a bonking" do you even endurance bro? Bonk's been a term since like the early 90s at least
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#7817822 - 08/13/14 02:04 PM
Re: how bad is 'bonking' in your workout?
[Re: Euphoricuck]
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The Mighty BellRacer
Despises overt racism
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Registered: 05/03/00
Posts: 26102
Loc: DFW
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i've bonked out pretty good on one of the first long bike rides i did. it freaking sucked.
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